Top Rated for PyCharm Educational Edition

Json Parser

Simple JSON Parser is an IntelliJ IDE plugin for validation and formatting JSON string.

GoToTabs

The plugin adds menu actions allowing you to go to a specific tab.

Run Configuration as Action

Register all run configuration as actions.

PlantUML integration

PlantUML diagramming tool integration.

Free MyBatis plugin

Free Mybatis plugin.

Frame Switcher

Plugin for more convenient switching between projects/frames/windows than is alt-tab or Window menu.

Autoscroll Save

At last, a handy way to save your Autoscroll to/from Source settings :).

Zero Width Characters locator

Inspired by this question on Stack Overflow - this plugin adds an inspection that prevents some hard to find bugs related to invisible zero width characters in source...

BrowseWordAtCaret

Allows to easily browse next/previous word at caret and highlight other appearances of selected word.

MyBatisX

MybatisX plugin.